HQ Automobile Parts HQ-402-0606 User Manual

 

HQ-006 I&M Manual 

                        HQ-402-0606 

 

6 

 

At least once a year a check should be made of your EIM HQ Series Actuator 

 

ƒ  Disconnect all power to actuator. 
ƒ  Open Electrical Enclosure.  Inspect and tighten all electrical connections 
ƒ  Visually inspect for any electrical or mechanical damage.  Replace worn or damaged components. 

ƒ 

Check lubrication consistency and levels.  Fill or replace if required.

 

 

Actuators must be stored in a clean, cool and dry area.  The unit shall be stored with the cover installed and the    
conduit openings sealed.   Storage must be off the floor, covered with a sealed dust protector. 

 

 

The following instructions are offered for the most common difficulties encounter during installation and 
start-up

.   

 
 

Motor will not Run 

Open in control circuit 

Refer to appropriate wiring diagram 

 

 

and check for continuity 

 

Insulation resistance breakdown in motor 

Perform Megger Test 

No power available to actuator 

Tripped circuit breaker 

Reset circuit breaker 

Manual Override Nut hard to turn 

Valve stem improperly lubricated 

Lubricate with grease 

 

Actuator lubrication has broken down 

Clean out old grease and replace 

 

  

with recommended lubricant 

 

Valve packing gland too tight 

Loosen packing gland nuts as  

  

 

necessary 

  

Jammed valve 

Refer to valve maintenance 

Valve only opens or closes 

Limit switch improperly set 

Check setting and reset if necessary 

partially with motor 

 

 

Manual Override Nut will not 

Stripped gearing 

Replace as necessary 

Operate valve 

Broken handwheel shaft 

Replace as necessary 

  

Broken valve stem 

Repair or replace as necessary 

Motor runs but will not operate 

Stripped gearing 

Replace as necessary 

valve